Notifications from the data model

Gantt > Programmer's documentation > Developing with the JViews Charts SDK > Handling chart renderers > Notifications from the data model

A chart renderer is notified of any modifications on its data model so that the renderer always reflects the current state of the data model.

All renderers (both composite and single) receive notifications from their data source each time a modification occurs. The following list presents the possible notifications and the associated IlvChartRenderer methods:

a data sets are added to the data source

dataSetsAdded

a data sets are removed from the data source

dataSetsRemoved

In addition to these notifications coming from the data source, an IlvSingleChartRenderer also receives notifications from its data set(s). These notifications are:

the contents of an associated data set is modified

dataSetContentsChanged

a property of an associated data set has changed

dataSetPropertyChanged

NOTE By default, a chart renderer is bound to an instance of IlvDefaultDataSource.